Bed.



B. MclNTOSH.

BED.

APPLICATION FILED 1AN.|1, 1916.

1,230,913. Patented June 26, 1917.

Z SHEETS-SHEET l.

B. MCINTOSH.

BED.

APPLICATIDN FILED 1AN.17.1915.

Patented June 26, 1917.-

2 SHEETS--SHEET 2 Inventor:`

Any.

mr Nomns persas cp mmm-umm wAsmNcroN. n cv i Fig. 3 is an enlargedfragmentary View of BURTNETT MCINTOSH, OF BROOKLYN, NEW YORK, ASSIGNORTO FRANK A. HALL, OF MONTCLAIR, NEW JERSEY.

BEI).

Specication of Letters Patent.

i Patented June 26, 1917.

Application filed January 17, 1916. Serial No. 72,376.

To all whom z5 may concern:

Be it known that I, BURTNETT MCINTosH, a citizen of the United States,residing at Brooklyn, in the county of AKings and State of New York,have invented certain new and useful Improvements in Beds, of which thefollowing is a specification.

My invention relates to bed springs and particularly to that type ofspring suitable for use in hospitals. In the embodiment herewith shown Ihave provided a spring having an adjustable head rest, an Vadjustableleg rest and means for adjusting the rests in various positions andfrictionally but securely locking them in such positions. The lockingmeans provides a quick and easy adjustment of the rests from either sideof the spring or bed without disturbing the patient; further a modifiedform of lock is shown in connection with a head rest applied to a springof regular design.

While springs of this type may be used as a part of a regular cot orbed, that is, supported between the regular head and foot sections,'-ithas been found desirable to provide a spring that could be placed on topof the ordinary spring of a bed for use in special cases, where it is'desirable to raise the patient by means ofthe head' rest or to raise thelimbs by means of the leg rest.

To this end I have provided a spring that Y is `fiat on the under sideand without projections that would interfere with the regular spring ofthe bed. Being fiat and of regular shape it is easily stored untilrequired for suchl a case as cited, when it canl be A readily laid'onthe spring of a regular bed and the patient comfortably supportedthereon.

Other objects and aims of the invention, more or less broad than thosestated above, together with the advantages inherent, will be in partobvious and in' part specifically referred to in the course of thefollowing description of the elements, combinations, arrangements ofparts, and applications of principles constituting the invention; andthe scope ofl protection contemplated will appear from the claims.

In the accompanying drawings, which are to be taken as a part of'thisspecification, and in which I have shown a merely pre ferred form ofembodiment of the invention, Figure 1 is a side elevation of my improvedspring; Fig. 2 is a top plan view thereof;

the frame of the spring adjacent to one of the locking devices; Fig. 4is a transverse verticalv section taken on the line 4 4 of Fig. 3; Fig.5 is a modified form of locking device in connection with a head restapplied to regular type of spring; Fig. 6 is a transverse verticalsection taken on the line 6 6 of F ig. 5'; and Fig. 7 is an enlargedsectional view of the locking device and adjacent parts as indicated bythe dotted line 7 -7 in Fig. 5.

Referring to the numerals on the drawings, and particularly to Figs. 1to 4, the frame 10 of the spring is made up of single irons; it isrectangular in shape and the sides are suitably riveted to the ends atthe corners. Flat corner braces 11 are provided to give rigidity to theframe, and to supplement these I provide screw bolts 12 which 'passthrough the ends near each corner and screw into a threadedsocket 14secured to each of the side angles of the frame 10. I construct theframe with guiding means. For this purpose, preferably adjacent each endof the frame l0, and on each side, there -is secured to the side anglesby screw 15 a guide bar in the form of an angle iron 16 adapted to beguided and be engaged by a locking device 30 hereinafter described.

Between the sides of the frame 10 there is mounted on pivots 17 a headrest 18 which consists of a tube bent in the form of the letter U; it isprovided with handles 19 and has secured to it at variouspoints thespring fabric 20, part of'which'isalso secured to the frame 10. l

On the opposite end of the frame 10 there is mounted on pivots 21 a legrest 22 which consists of tubular arms 23, one end of each of which issecured to the pivots 21, the

other end being pivoted at 24 to similar arms 25. ,The arms 23 areprovided with handles 23 while the spring fabric 2O is secured to boththe arms 23 and 25.

The, locking device 30 is connected to arms 25 of the leg rest 22, andthis locking device is also connected to the head rest by means of flatarms 37. This locking device 30 is adapted to slide on the angle irons16. It consists of a body portion 31 which is cut out so as to form jaws32 and 33,'the former adapted to engage the upper side of the angle 16while the latter is adapted to engage the under side. Adjacent to theVjaw 33 the body 31 is extended to form a fingerfpiece 34, while on theopposite end of the body 31 there is formed an arm 35 having a pivot pin36 by which it is secured to the ends of the arms 37 of the head rest,or of the arms 25 of the leg rest. The j arm lies within the angle ofangle irons which form the side of the frame 10.Y A boss 38' extendsfrom the body portion 31; it is apertured at 39 to provide a socket fora cross-rod 40 which is secured into the boss 38 by means of a pin 41which passes through a1 hole 42 in the rod 40, this hole being ofslightly greater diameter than the pm in order to provide for playbetween the locking devices 30 on each side of the frame, which areconnected by the cross-rod 40.

ln order to raise or lower the head or leg rests, all that is necessaryis to grasp the linger piece 34 of any of the locking devices 30 andraise the said linger piece, this movement will cause the jaws 32 and 33to rock and release their grip upon the angle irons 16 and allow thedevice to slide along on the angle iron. lhen the proper ad* justment ofthe rest is obtainedthe linger piece is released and the weight of therest causes the device to assume the locked p0- sition as shown in thedrawings and the jaws 32 and 33 to bite into the angle irons 16.

The angle irons 16 being slightly higher than the upper edge of theangles of the frame 10 the wear is thus confined to the angles 16 whichmay be nickel-plated instead-of painted or enameled.

Referring to Figs. 5, 6 and 7. Here I have shown a modification of thelocking device as applied to regular spring 50, the upper end adjacentto the head rest 18 being shown. The side frames 51 of this spring aretubular, while the ends 52 support angles 53 to which the spring fabric54 is attached.

On thek upper sides of the side frame 51 are secured, as by screws 55,wear plates 56. The locking device is mounted on the side frame 51'andeach pair is connected by the usual cross-rod 40; likewise each deviceis pivoted to flat arms 37" which in turn are pivoted to the headrestframe 18.

The locking device consists of flat plate body 58 having twosemi-circular eXtensions 59 and 60. The body 58 has an arm 61 extendingtherefrom which is bent at right angles thereto to form a finger piece62, and on the rear of the body 58 there is a boss 38 having an aperture39 in which is mounted the' cross-rod 40, secured by a pin 41 whichpasses through a hole 42 in the end of the cross-rod 40.

The semi-circular extensions 59 and 60 terminate in lugs 59 and 60 whichare square in cross section. These lugs are adapted to fit intosimilarly shaped holes in a flat lever 63 which is further secured tothe `body 58 bymeans of rivets 64. The upper end of the lever 63 ispivoted to the arm One edge of the upper extension 59 is adapted to forma jaw 65 which is adapted to bite into the wear plate 56 on the upperside of the frame 51 while diametrically opposite the edge 66 of theextension 60 is adapted to form a jaw 67 and bite the lower surface 0fthe frame 5l.

Thus, if the linger piece 62 of the locking device be depressed the jaws65 and 67 will release their grip on the frame 51 and the head rest 18will be free to be adjusted, as the locking device will be free to slideon the frame 51. lnA the modification` it'will be noted that in order torelease the grip of the in the above construction, and many apparentlywidely different embodiments of my invention could be made withoutdeparting from the scope thereof, it is Lintended that all mattercontained in the above description or shown in the accompanying drawingsshall be interpreted as illustrative and not in a limiting sense. l

It is also to be understood that the language used in the followingclaims is intended to cover all the generic and specific features of theinvention herein described and all state'- ments of the scope of theinvention which, as a matter of language, might be said to falltherebetween.

I claim:

1. A bed spring comprising a frame, an adjustable rest attached to saidframe, locking devices mounted to slide longitudinally of said frame andhaving jaws, and braces attached to the said rest for supporting thesame, said locking devices having armsattached to said braces so thatthe weight of the rest causes said jaws to lock said locking devices tosaid frame, said locking devices having means for rocking them toreleasesaid jaws.

2. A bed spring comprising a frame, ain

adjustable rest attached to said frame, fric- Y' tional locking deviceslslidable longitudinally of the frame and constructed tohave lockingengagement with the frame upon rocking movement of the locking devicesand braces for supporting the rest connected to the rest and to thelocking devices at suoliy point that the thrust of the braces under theweight of the rest tends to rock the locking devices into lockingAengagement with the frame.

3. A bed spring comprising a frame having longitudinal side members, arest mount ed for swinging movement in a Vvertical plane with respect tosaid frame, braces connected at one of their endsy to said rest, lockingdevices comprising separated jaws which lie above and below the sidemembers of the frame and which are spaced apart such a distance thatwhen the locking devices are rocked in one direction the jaws arereleased from the side members of the frame and the locking devices arecapable of sliding movement with respect to said side members and whenrocked in the opposite direction said jaws are caused to frictionallybind upon said frame and means for attaching the other ends of saidbraces to the locking devices at such a point that when the rest isdrawn .upwardly the jaws are moved out of engagement with the sidemembers of the frame and when the rest is released the weight of saidrest acts through. the braces to move the jaws into locking engagementwith the sides of the frame.

4. A structure as recited in claim 3 including a connection between thelocking devices of the opposite side members of the frame whereby saidlocking devices are caused to rock in unison.

5. A structure as recited in claim 4 in which one of the locking devicesis provided with a hand grasp portion to adapt it to be manually rockedto release the locking devices.

In testimony whereof I affix my signature.

BURTNETT MCINTOSH.

Copies of this patent may he obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

